A fine woman with large breasts and tattoos all over her body. That's my mom, Taeko Miki, 31 years old. I'm Kenzou Miki, 16 years old, in my second year of high school. My mom gave birth to me when she was 15. I don't know my father. Mom raised me by herself and I don't want to do the same thing as my dad, who got my mom pregnant when she was still in school and then abandoned her. My girlfriend is important to me, so I don't want her to go through the same thing as my mom. But lately, it's been difficult to control myself. She's adorable, and I'm at the height of puberty. Me, my mom, and my girlfriend. And my girlfriend's brother. Why are my eyes blue? Why does she have cigarette burns on her back? And what is the relationship between my mom and her brother? 体中に刺青。派手な巨乳のイイ女。これが俺の母親、幹多枝子31歳。 俺は幹兼蔵16歳高2。俺の母ちゃんは15の時に俺を産んだ。父親は知らない。 母ちゃんはずっと、女手一つで俺を育ててくれた。 だから俺は、まだ学生の母ちゃんを孕ませて捨てた俺の父親と同じ事したくなくて、彼女にも手が出せないでいる。大事だから、母ちゃんと同じ目に合わせたくないんだ…。 けど、最近理性を保つのが難しい。彼女はとっても可愛くて、俺は青(性)春まっさかりで…。 俺と、俺の母ちゃんと、俺の彼女。そして彼女の兄貴。 俺達の周りで何かが動き出す。俺の目が青いのは、彼女の背中に火傷の痕があるのは、彼女の兄貴と俺の母ちゃんの関係は…!?